Hermann ebbs



H. EBBS. IGNITING DEVICE FOR GAS, PETROLEUM, OR OTHER ENGINES.

. Patented Aug 25, 1896.

(E0 Model.)

THE Namus PETERS co, mom-urns wAsmum-on. I; c.

UNITED STATES PATENT OFFICE.

HERMANN EBBS, OF MAGDEBURG, GERMANY, ASSIGNOR TO THE FRIED. KRUPPGRUSONIVERK, OF SAME PLACE.

IGNITING DEVICE FOR GAS, PETROLEUM, OR OTHER ENGINIES.

SPECIFICATION forming part of Letters Patent No. 566,300, dated August25, 1896. Ap lication filed November 6, 1895. Serial No. 568,124. (Nomodel.) Patented in Germany June 12, 1892, No. 68,188-

To all whom it may concern:

Be it known that I, HERMANN EBBs, engineer, a subject of the King ofPrussia, Emperor of Germany, and a resident of Magdeburg, Prussia,German Empire, have invented new and useful Improvements in IgnitingDevices for Gas, Petroleum, and other Motors, (for which Letters Patenthave been granted in Germany, No. 68,188, dated June 12,1 892,) of whichthe following is a specification.

This invention relates to an improved igniting device for gas,petroleum, and other motors.

This improved device is intended to secure in a simple manner asufficiently tight closure between the igniting-space and the cylinderor compression-space during the period of compression, in order toprevent a premature ignition of the explosive mixture, as will appear bythe accompanying drawings, in which-- Figure 1 is a vertical sectionaldetail of the parts of an explosive-engine embodying my improvements.Fig. 2 is a vertical section at right angles to the plane of Fig. 1,showing the location of my improvement between the compressiomchamberand the igniting-chamber. Fig. 8 shows by two views, in directions atright angles to each other, the construction of the plug and itsturning-key.

The igniting device, as is apparent from Figs. 1, 2, and 3,substantially comprises the plug 1, the key 2, the casing 3, and thelever 4. The plug and the casing are provided with appropriatepassage-openings 5 and 6, which toward the end of the period ofcompression present themselves in such a position against each otherthat the explosive mixture arriving from the cylinder 7 and thecompression-space 8, respectively, passes through the plug to theincandescent body, where it is ignited. The oscillating movement of theplug 1 is imparted through key 2 by means of the lever 4 and theslide-rod 14.

In order to secure a sufficiently tight closure between the plug 1 andthe channel 6, leading toward the incandescent body, the plug is notmade in one piece with the key, but is so connected by the tongue 11,arranged on the key and engaging the slit 10 of the plug, that the plugmust of necessity follow the oscillating movement of the key, but isenabled to be displaced in the direction of the slit 10 and of thepassage-opening 5, running parallel to the said slit. By this separationof the two parts 1 and 2 the plug is kept forced against the channel 6by the action of compression, even when after long use its diameterbecomes reduced, so that a sufficiently tight closure is always securedand premature ignition prevented between the compressionspace and theincandescent body.

In order to secure a tight closure between the space containing the plugand the socket or casing of the key 2, communicating with theatmosphere, the said key is provided with a tapered shoulder or washer12, which latter is, by the action of the compression, forced against acorrespondinglyshaped surface of the key socket or casing.

By constructing the two parts 1 and 2 separately the further advantageis obtained that the plug need not be fitted into the easing withabsolute accuracy. Even when ow ing to wear and tear the internaldiameter of the casing has worn oval a sufficiently tight closure isstill always secured by the action of compression against the wall inwhich the opening 6 is arranged, since the connection of the plug and ofthe key is such that the plug is enabled to yield to this pressurewithout being prevented from so doing by the key. For thesame reason thekey permanently remains in its axial position and is not subject tolateral pressure from the plug, and the washer 12 will consequently bealways enabled to tightly close the plug-space against the atmosphere.

The casing 3 is secured in the head of the cylinder by means of a screw13. After loosening the screw the casing can be withdrawn, thus allowingof removing the plug out of the casing when the same is to be cleaned orreplaced.

What I do claim as my invention, and desire to secure by Letters Patent,is-

1. In an igniting device, of substantially the character specified, thecombination of a casing interposed in the passage to be controlled, aplug oscillating in said casing and having a transverse passage, a keyhaving connection for imparting oscillatory movement to it and connectedwith the plug by a tongue and slot opening and closing said passage anda reduced socket extending axially from the bore of the casing andcontaining a key having at one end tongue-and-slot connection with theplug for the purpose stated, and at the other connections for impartingoscillatory movement to it; said key being formed With the beveledbearing at the inner end of the socket.

HERMANN EBBS. WVitnesses:

EMIL KALLNECKER, J ULIUS MUTH.

